// 基础JavaScript
document.addEventListener('DOMContentLoaded', function() {
    // 移动端导航菜单切换
    const navToggle = document.getElementById('navToggle');
    const navMenu = document.getElementById('navMenu');
    
    if (navToggle && navMenu) {
        navToggle.addEventListener('click', function() {
            navToggle.classList.toggle('active');
            navMenu.classList.toggle('active');
        });
    }
    
    // 点击外部关闭菜单
    document.addEventListener('click', function(event) {
        if (navToggle && navMenu) {
            const isClickInsideNav = navMenu.contains(event.target) || navToggle.contains(event.target);
            
            if (!isClickInsideNav && navMenu.classList.contains('active')) {
                navToggle.classList.remove('active');
                navMenu.classList.remove('active');
            }
        }
    });
    
    // 平滑滚动
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            const target = document.querySelector(this.getAttribute('href'));
            if (target) {
                target.scrollIntoView({
                    behavior: 'smooth'
                });
            }
        });
    });
});

// 工具函数
const Utils = {
    // 格式化日期
    formatDate: function(dateString) {
        if (!dateString) return '';
        const date = new Date(dateString);
        return date.toLocaleDateString('zh-CN');
    },
    
    // 格式化数字
    formatNumber: function(num) {
        if (num >= 10000) {
            return (num / 10000).toFixed(1) + '万';
        }
        return num.toString();
    },
    
    // 防抖函数
    debounce: function(func, wait) {
        let timeout;
        return function executedFunction(...args) {
            const later = () => {
                clearTimeout(timeout);
                func(...args);
            };
            clearTimeout(timeout);
            timeout = setTimeout(later, wait);
        };
    },
    
    // 节流函数
    throttle: function(func, limit) {
        let inThrottle;
        return function() {
            const args = arguments;
            const context = this;
            if (!inThrottle) {
                func.apply(context, args);
                inThrottle = true;
                setTimeout(() => inThrottle = false, limit);
            }
        };
    }
};